Can someone explain in the clearest way possible how to solve this problem and also does it involve using sin cos tan formulas?

Mathematics

1 answer:

baherus [9]3 years ago

8 0

9514 1404 393

Answer:

480 ft

Step-by-step explanation:

The geometry involves two similar triangles. The ruler at arms length forms a triangle that has the opposite side 3 inches high and 24 inches (2 ft) away. That is, the distance from the eye to the ruler is 8 times the height of the ruler.

The triangle involving the lighthouse is similar. That is, the angles in it are the same, so the sides are proportional to those in the smaller (ruler) triangle. The distance to the lighthouse will be 8 times the height of the lighthouse, just as the distance to the ruler is 8 times the height of the ruler.

8 × 60 ft = 480 ft

The lighthouse is 480 feet away.

You might be interested in

you need 4 teaspoons of cinnamon to make a cake if you up the recipe and use 6 teaspoons of cinnamon what percent increase does

stira [4]

Answer:

going from 4 tsp to 60 tsp is an increase of 50%

Step-by-step explanation:

$\frac{new - old}{old} \times 100$

$\frac{6 - 4}{4} \times 100 = \\ \frac{2}{4} \times 100 = \frac{1}{2} \times 100 = \frac{100}{2} = 50$

3 0

3 years ago

I need help on This question

Tasya [4]

Answer:

Radius - 30 feet

Area - 2826 feet²

Step-by-step explanation:

I'm pretty sure that's the answer

5 0

3 years ago

Is it easier to subtract when the numbers are written above each other?

aksik [14]

I would say yes, it is easier to subtract numbers when they are above and below each other because that ways you can easily borrow from the places in front of the number and rewrite without problems. It also helps keep the math more organized so that your work does not confuse you.

Hope this helps c:

8 0

3 years ago

Read 2 more answers

Is Y=19x - 5 proportional. Why?

Goshia [24]

Answer:

yes

Step-by-step explanation:

y=kx+b

here k=19 and b=-5

4 0

3 years ago